module DSLKit::DSLAccessor

def dsl_reader(name, *default, &block)

#dsl_accessor but can only be read not set.
This method creates a dsl reader accessor, that behaves exactly like a 
def dsl_reader(name, *default, &block)
  variable = "@#{name}"
  define_method(name) do |*args|
    if args.empty?
      result = instance_variable_get(variable)
      if result.nil?
        if default.empty?
          block && instance_eval(&block)
        elsif default.size == 1
          default.first
        else
          default
        end
      else
        result
      end
    else
      raise ArgumentError, "wrong number of arguments (#{args.size} for 0)"
    end
  end
end